| Scientist | Year | Milestone | 
	| Abdullin, F. Sh. | 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Abelson, Philip | 1940 | Neptunium
	(atomic number 93) | 
	| Adams, John Couch | 1846 | Discovery of Neptune | 
	| Aepinus, Franz | 1756 | Pyroelectricity | 
	| Jabir ibn Aflah | 2400 BCE - 1820 CE | Computing devices | 
	| Agassiz, Louis | 1840 | Ice age | 
	| Agricola, Georgius | 1529 | Fluorine
	(atomic number 9) | 
	| 1548 | Bismuth
	(atomic number 83) | 
	| Akap’ev, G. N. | 1970 | Dubnium
	(atomic number 105) | 
	| Alberti, Leon Battista | 1413 - 1420 | Perspective | 
	| Al-Biruni | 2400 BCE - 1820 CE | Computing devices | 
	| D’Alembert, Jean le Rond | 1752 | D’Alembert’s paradox | 
	| Alexanderson, Ernst | 1904 | Alexanderson alternator | 
	| Alfvén, Hannes | 1942 | Alfvén wave | 
	| 1971 | Plasma cosmology | 
	| Alhazen
(Abū-‘Alī al-Ḥasan ibn al-Ḥasan ibn al-Ḥaytham) | 1025 | Optics | 
	| Allen, John F. | 1937 | Superfluidity | 
	| Ismail al-Jazari | 2400 BCE - 1820 CE | Computing devices | 
	| Jamshīd al-Kāshī | 2400 BCE - 1820 CE | Computing devices | 
	| al-Khwārizmī, Muḥammad ibn Mūsā | 820 | Algebra | 
	| Alonso, Carol T. | 1974 | Seaborgium
	(atomic number 106) | 
	| Alonso, José R. | 1974 | Seaborgium
	(atomic number 106) | 
	| Abū Ishāq Ibrāhīm al-Zarqālī | 2400 BCE - 1820 CE | Computing devices | 
	| Alter, David | 1833 | Electrical telegraph | 
	| Amontons, Guillaume | 1699 | Tribology | 
	| Ampère, André-Marie | 1810 | Fluorine
	(atomic number 9) | 
	| 1811 | Iodine
	(atomic number 53) | 
	| 1820 | Electromagnetism | 
	| Anderson, Carl David | 1932 | Antimatter | 
	| 1932 - 1951 | Positronium | 
	| 1936 | Muon | 
	| de Andrada, José Bonifácio | 1817, 1821 | Lithium
	(atomic number 3) | 
	| Antheil, George | 1942 | Frequency-hopping | 
	| Antonelli, Kathleen | 1946 | ENIAC | 
	| Apollonius of Perga | 2400 BCE - 1820 CE | Computing devices | 
	| Arago, François | 1819 | Wave optics | 
	| Archimedes | 260 BCE | Mechanical advantage | 
	| Arfwedson, Johan August | 1817, 1821 | Lithium
	(atomic number 3) | 
	| Aristotle | 335 BCE | Science | 
	| Armbruster, Peter | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| 1996 | Copernicium
	(atomic number 112) | 
	| Arrhenius, Svante | 1896 | Arrhenius equation | 
	| Aserinsky, Eugene | 1953 | Rapid-eye-movement sleep | 
	| Asperger, Hans | 1938, 1943 | Autism | 
	| Assmann, Richard | 1902 | Stratosphere | 
	| Aston, Francis William | 1922 | Isotope | 
	| Avery, Oswald | 1944 | Molecular genetics | 
	| Avicenna (Ibn-Sīnā) | 1025 | The Canon of Medicine | 
	| Avogadro, Amedeo | 1811, 1909 | Avogadro constant | 
	| Baade, Walter | 1918 | The universe | 
	| 1933 | Neutron star | 
	| Babbage, Charles | 1822 | Difference engine | 
	| 1946 | Computer | 
	| Bacon, Francis | 1605 | Binary number | 
	| 1605 | Bacon’s cipher | 
	| 1620 | Scientific method | 
	| Baekeland, Leo | 1907 | Bakelite | 
	| von Baer, Karl Ernst | 1826 | Eggs and embryos | 
	| Bailey, P. D. | 2009 | Tennessine
	(atomic number 117) | 
	| Balard, Antoine Jérôme | 1825, 1826 | Bromine
	(atomic number 35) | 
	| Baltimore, David | 1970 | Reverse transcriptase | 
	| Banting, Frederick | 1921 | Insulin | 
	| Bardeen, John | 1947 | Transistor | 
	| 1957 | BCS theory | 
	| Barger, George | 1914 | Neurotransmitters | 
	| Barish, Barry C. | 1967 | LIGO | 
	| Barkhausen, Heinrich | 1919 | Barkhausen effect | 
	| Barnes, Charles C. | 1874 | Rotary vane pump | 
	| Barnett, William | 1678 - 1876 | Internal combustion engine | 
	| Barrow, Isaac | 1668, 1669 | Fundamental theorem of calculus | 
	| Barsanti, Eugenio | 1678 - 1876 | Internal combustion engine | 
	| Bartholin, Rasmus | 1669 | Birefringence | 
	| Bartik, Jean | 1946 | ENIAC | 
	| Bates, Henry Walter | 1861 | Batesian mimicry | 
	| Bateson, William | 1904 | Genetic linkage | 
	| Bayes, Thomas | 1763 | Bayes’ theorem | 
	| Becquerel, Henri | 1896 | Radioactivity | 
	| von Behring, Emil | 1890 | Antitoxins | 
	| Beijerinck, Martinus | 1898 | Viruses | 
	| Bell, Alexander Graham | 1876 | Telephone | 
	| Bellaso, Giovan Battista | 118 BCE - 1953 | Cipher: Vigenère cipher | 
	| Belousov, Boris Pavlovich | 1951 | Chemical oscillations | 
	| van Beneden, Edouard | 1878 | Mitosis | 
	| Benz, Karl | 1885 | Automobile | 
	| Berg, Otto | 1908, 1925 | Rhenium
	(atomic number 75) | 
	| Bergman, Torbern | 1770 - 1774 | Manganese
	(atomic number 25) | 
	| 1781, 1783 | Tungsten
	(atomic number 74) | 
	| Bernard, Claude | 1865 | Regulating the body | 
	| Bernoulli, Daniel | 1738 | Bernoulli’s principle | 
	| Bernoulli, Jacob | 1683 | Euler’s number | 
	| Bertillon, Alphonse | 1893 | Anthropometry | 
	| Berzelius, Jöns Jacob | 1789, 1824 | Zirconium
	(atomic number 40) | 
	| 1791 - 1910 | Titanium
	(atomic number 22) | 
	| 1803 | Cerium
	(atomic number 58) | 
	| 1813 | Chemical nomenclature | 
	| 1817 | Lithium
	(atomic number 3) | 
	| 1817 | Selenium
	(atomic number 34) | 
	| 1823 | Silicon
	(atomic number 14) | 
	| 1829 | Thorium
	(atomic number 90) | 
	| 1830 | Vanadium
	(atomic number 23) | 
	| 1841 | Allotropy | 
	| Bessel, Friedrich | 1838 | Distance to a star | 
	| Best, Charles Herbert | 1921 | Insulin | 
	| Bethe, Hans | 1920 | Stellar evolution | 
	| 1948 | Quantum electrodynamics | 
	| Bhāskara II | 285 | Diophantine equation | 
	| Binet, Alfred | 1904 | Intelligence testing | 
	| Birkeland, Kristian | 1784, 1903 | Birkeland-Eyde process | 
	| 1908 | Birkeland current | 
	| 1908 - 1958 | Van Allen belts | 
	| Bi Sheng | 1040 | Movable-type printing | 
	| Bishop, Katharine | 1913 - 1930 | Vitamin discoveries: E | 
	| Bjerknes, Jacob | 1920 | Weather forecasting | 
	| Bjerknes, Vilhelm | 1920 | Weather forecasting | 
	| Black, Joseph | 1755 | Magnesium
	(atomic number 12) | 
	| 1761 | Latent heat | 
	| Blackburn, Elizabeth | 1971 - 1977 | Telomere | 
	| Bloch, Felix | 1930 | Magnon | 
	| 1930 - 2014 | Quasiparticles: Magnon | 
	| Blomstrand, Christian Wilhelm | 1801 | Niobium
	(atomic number 41) | 
	| Blumenbach, Johann Friedrich | 1790, 1808 | Strontium
	(atomic number 38) | 
	| Bodamer, Joachim | 1947 | Prosopagnosia | 
	| Bogomolov, Sergey L. | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| Bohr, Niels | 1913 | Atom | 
	| 1913 | Bohr magneton | 
	| de Boisbaudran, Paul-Émile Lecoq | 1875 | Gallium
	(atomic number 31) | 
	| 1879 | Samarium
	(atomic number 62) | 
	| 1886 | Dysprosium
	(atomic number 66) | 
	| 1890 - 1901 | Europium
	(atomic number 63) | 
	| Bohm, David | 1930 - 2014 | Quasiparticles: Plasmon | 
	| Bolyai, János | 1829 | Non-Euclidean geometry | 
	| Bolton, John | 1962 - 1964 | Quasar | 
	| Boltwood, Bertram | 1907 | Dating rocks | 
	| Boltzmann, Ludwig | 1879 | Stefan-Boltzmann law | 
	| 1908 | Brownian motion | 
	| Bonner, John Tyler | 1947 | Slime-mold bodies | 
	| Boole, George | 1847 | Boolean algebra | 
	| Bose, Satyendra Nath | 1925 | Bose-Einstein condensate | 
	| Böttger, Rudolf Christian | 1846 | Guncotton | 
	| Boveri, Theodor | 1902 | Boveri-Sutton chromosome theory | 
	| Boyle, Robert | 1661 | Chymistry | 
	| 1662 | Boyle’s law | 
	| Bradley, James | 1729 | Aberration of light | 
	| Brahe, Tycho | 1572 | Supernova | 
	| Brahmagupta | 628 | Diophantine equation: Pell’s equation | 
	| 628 | Zero | 
	| Braid, James | 1852 - 1854 | Ideomotor phenomenon | 
	| Brainerd, John Grist | 1946 | ENIAC | 
	| Brand, Hennig | 1669 | Phosphorus
	(atomic number 15) | 
	| Brande, William Thomas | 1817, 1821 | Lithium
	(atomic number 3) | 
	| Brandt, Georg | 1735 | Cobalt
	(atomic number 27) | 
	| Branly, Edouard | 1890 | Coherer | 
	| Brattain, Walter Houser | 1947 | Transistor | 
	| Braun, Karl Ferdinand | 1874, 1904 | Crystal diode | 
	| 1905 | Phased array | 
	| Brickwedde, Ferdinand | 1931 | Deuterium | 
	| Bridges, Calvin | 1910 | Genes | 
	| van den Brink, Jeroen | 1930 - 2014 | Quasiparticles: Orbiton | 
	| Broca, Paul | 1861 | Mapping speech | 
	| van den Broek, Antonius | 1911 | Atomic number | 
	| de Broglie, Louis | 1925 | Wave-particle duality | 
	| Brouncker, William | 285 | Diophantine equation: Pell’s equation | 
	| Brown, Robert | 1831 | Cell | 
	| 1908 | Brownian motion | 
	| Brown, Samuel | 1678 - 1876 | Internal combustion engine | 
	| Brown, William C. | 1964 | Rectenna | 
	| Brownrigg, William | 1750 | Platinum
	(atomic number 78) | 
	| Brugmans, Sebald Justinus | 1778, 1845 | Diamagnetism | 
	| Buklanov, German Vladimirovich | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| Brunelleschi, Filippo | 1413 - 1420 | Perspective | 
	| Bunsen, Robert | 1855 | Bunsen burner | 
	| 1859 | Analytical spectroscopy | 
	| 1860, 1882 | Caesium
	(atomic number 55) | 
	| 1861 | Rubidium
	(atomic number 37) | 
	| Burnell, Jocelyn Bell | 1967 | Pulsar | 
	| Burnet, Frank Macfarlane | 1949 | Immune tolerance | 
	| Bussy, Antoine | 1828 | Beryllium
	(atomic number 4) | 
	| Butenandt, Adolf | 1959 | Pheromone | 
	| Bütschli, Otto | 1878 | Mitosis | 
	| Byrne, John F. (links to Chaocipher) | 118 BCE - 1953 | Cipher: Chaocipher | 
	| Caesar, Julius | 118 BCE - 1953 | Cipher: Caesar cipher | 
	| 46 BCE | Julian calendar | 
	| Cai Lun | 105 | Paper | 
	| y Cajal, Santiago Ramón | 1889 | Nervous system | 
	| Camerarius, Rudolf Jakob | 1694 | Plant sexuality | 
	| Calmette, Albert | 1895 | Antivenom | 
	| 1921 | Tuberculosis vaccine | 
	| Calvin, Melvin | 1946 | Photosynthesis | 
	| Campbell, George Ashley | 1899 | Loading coil | 
	| Carnot, Nicolas Léonard Sadi | 1847 | Laws of thermodynamics | 
	| Carothers, Wallace | 1935 | Nylon | 
	| Carpenter, William Benjamin | 1852 - 1854 | Ideomotor phenomenon | 
	| Carré, Ferdinand and Edmond | 1805 - 1876 | Vapor-compression refrigeration | 
	| Casimir, Hendrik | 1948 | Casimir effect | 
	| Cassini, Giovanni Domenico | 1671 | Planetary distances | 
	| Cavendish, Henry | 1781 | Electric conductivity | 
	| 1784 | Hydrogen and water
	(atomic number 1) | 
	| 1784, 1903 | Birkeland-Eyde process | 
	| 1798 | ‘Weighing’ the world | 
	| Celsius, Anders | 1742 | Centigrade scale | 
	| Chadwick, James | 1932 | Neutron | 
	| Champollion, Jean François | 1822 | Deciphering hieroglyphics | 
	| Chandrasekhar, Subrahmanyan | 1931 | White dwarfs | 
	| Chang, Min Chueh | 1944 - 1960 | The pill | 
	| Chatton, Édouard | 1925, 1962 | Prokaryote and eukaryote | 
	| Chelnokov, L. P. | 1970 | Dubnium
	(atomic number 105) | 
	| Chelnokov, M. L. | 1999-2007 | Flerovium
	(atomic number 114) | 
	| Chepigin, Victor Ivanovich | 1999-2007 | Flerovium
	(atomic number 114) | 
	| Chevreul, Michel Eugène | 1852 - 1854 | Ideomotor phenomenon | 
	| Cherenkov, Pavel | 1934 | Cherenkov radiation | 
	| Chinese, Han dynasty | 206 BCE | Compass | 
	| 200 | Woodblock printing | 
	| Chinese, Tang dynasty | 9th century | Gunpowder | 
	| 10th century | Rocket | 
	| Choppin, Gregory R. | 1955 | Mendelevium
	(atomic number 101) | 
	| Christie, Samuel Hunter | 1833, 1843 | Wheatstone bridge | 
	| Christin, Jean-Pierre | 1742 | Centigrade scale | 
	| Chua, Leon | 1971 | Memristor | 
	| Claus, Karl Ernst | 1844 | Ruthenium
	(atomic number 44) | 
	| Clausius, Rudolf | 1847 | Laws of thermodynamics | 
	| Cleve, Per Teodor | 1868 - 1895 | Helium
	(atomic number 2) | 
	| 1878 - 1879 | Holmium
	(atomic number 67) | 
	| 1879 | Thulium
	(atomic number 69) | 
	| Coandă, Henri | 1934 | Coandă effect | 
	| Cohen, Stanley | 1952 | Nerve growth | 
	| Colton, Frank B. | 1944 - 1960 | The pill | 
	| Compton, Arthur Holly | 1923 | Compton scattering | 
	| Conway, John Horton | 1970 | Conway’s Game of Life | 
	| Cooke, William Fothergill | 1838 | Electrical telegraph | 
	| Cooper, Leon | 1930 - 2014 | Quasiparticles: Cooper pair | 
	| 1956 | Cooper pair | 
	| 1957 | BCS theory | 
	| Corson, Dale R. | 1940 | Astatine
	(atomic number 85) | 
	| Coryell, Charles D. | 1945 | Promethium
	(atomic number 61) | 
	| Coster, Dirk | 1923 | Hafnium
	(atomic number 72) | 
	| Copernicus, Nicolaus | 1543 | Heliocentrism | 
	| de Coriolis, Gaspard-Gustave | 1835 | Coriolis effect | 
	| Cotton, Aimé | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| de Coulomb, Charles-Augustin | 1785 | Coulomb’s law | 
	| Courtois, Bernard | 1811 | Iodine
	(atomic number 53) | 
	| Courtenay-Latimer, Marjorie | 1938 | Coelacanth | 
	| Cowan, Clyde | 1956 | Neutrino | 
	| Cranston, John Arnold | 1913 - 1918 | Protactinium
	(atomic number 91) | 
	| Crawford, Adair | 1790, 1808 | Strontium
	(atomic number 38) | 
	| Crick, Francis | 1953 | DNA structure | 
	| Cronin, James | 1964 | CP violation | 
	| Cronstedt, Axel Fredrik | 1751 | Nickel
	(atomic number 28) | 
	| Crookes, William | 1861 - 1862 | Thallium
	(atomic number 81) | 
	| 1869 - 1875 | Crookes tube | 
	| 1873 | Crookes radiometer | 
	| 1903 | Spinthariscope | 
	| Cruikshank, William | 1790, 1808 | Strontium
	(atomic number 38) | 
	| Curie, Jacques | 1880, 1881 | Piezoelectricity | 
	| Curie, Marie | 1896 | Radioactivity | 
	| Curie, Pierre | 1880, 1881 | Piezoelectricity | 
	| 1896 | Radioactivity | 
	| 1898 | Polonium
	(atomic number 84) | 
	| 1898 | Radium
	(atomic number 88) | 
	| 1899 - 1910 | Radon
	(atomic number 86) | 
	| Curl, Robert | 1952 - 1991 | Fullerene | 
	| de Cusa, Nicolaus | 1450, 1481 | Hygrometer | 
	| Cuvier, Georges | 1796 | Comparative anatomy | 
	| Dale, Henry Hallett | 1914 | Neurotransmitters | 
	| Dalton, John | 1808 | Atomic theory | 
	| Dam, Henrik | 1913 - 1930 | Vitamin discoveries: K | 
	| Daniell, John Frederic | 1803, 1830 | Platinum pyrometer | 
	| Dart, Raymond | 1925 | Tuang child | 
	| Dalgarno, George | 1647 - 1678 | Philosophical language: Ars signorum | 
	| Darwin, Charles | 1859 | Origin of species | 
	| Davaine, Casimir | 1876 | Bacillus anthracis | 
	| Davis, Marguerite | 1913 - 1930 | Vitamin discoveries: A and B | 
	| Davy, Humphry | 1802 - 1879 | Incandescent light | 
	| 1807 | Potassium
	(atomic number 19) | 
	| 1807 | Sodium
	(atomic number 11) | 
	| 1808 | Calcium
	(atomic number 20) | 
	| 1808 | Boron
	(atomic number 5) | 
	| 1808 | Barium
	(atomic number 56) | 
	| 1808 | Magnesium
	(atomic number 12) | 
	| 1808 | Strontium
	(atomic number 38) | 
	| 1810 | Chlorine
	(atomic number 17) | 
	| 1810 | Fluorine
	(atomic number 9) | 
	| 1811 | Iodine
	(atomic number 53) | 
	| 1821 | Electric conductivity | 
	| 1823 | Silicon
	(atomic number 14) | 
	| Debierne, André-Louis | 1899 - 1910 | Radon
	(atomic number 86) | 
	| 1899, 1902 | Actinium
	(atomic number 89) | 
	| Delafontaine, Marc | 1878 - 1879 | Holmium
	(atomic number 67) | 
	| Delastelle, Felix | 118 BCE - 1953 | Cipher: Four-square cipher | 
	| Delbrück, Max | 1943 | Bacterial genes | 
	| Delisle, Joseph-Nicolas | 1732 | Delisle scale | 
	| Demarçay, Eugène-Anatole | 1890 - 1901 | Europium
	(atomic number 63) | 
	| Dement, William C. | 1953 | Rapid-eye-movement sleep | 
	| Demin, A. G. | 1970 | Dubnium
	(atomic number 105) | 
	| Desaga, Peter | 1855 | Bunsen burner | 
	| Descartes, René | 1637 | Cartesian coordinates | 
	| 984, 1602, 1621, 1637 | Snell’s law | 
	| Deutsch, Martin | 1932 - 1951 | Positronium | 
	| Deville, Henri Étienne Sainte-Claire | 1801 | Niobium
	(atomic number 41) | 
	| Diesbach, Johann Jacob | 1706 | Prussian blue | 
	| Diesel, Rudolf | 1893 | Diesel engine | 
	| Diffie, Whitfield | 1976 - 1991 | Public-key cryptography | 
	| Diophantus | 285 | Diophantine equation | 
	| Dioscorides, Pedanius | 70 AD | Traditional medicine | 
	| Dirac, Paul | 1925, 1926 | Pauli exclusion principle/Exchange interaction | 
	| 1928 | Dirac equation | 
	| 1930 - 2014 | Quasiparticles: Magnetic monopole | 
	| 1932 | Antimatter | 
	| Djerassi, Carl | 1944 - 1960 | The pill | 
	| Dobzhansky, Theodosius | 1918 | Neo-Darwinism | 
	| Domagk, Gerhard | 1908, 1935 | Sulfanilamide | 
	| Donets, E. D. | 1958 | Nobelium
	(atomic number 102) | 
	| Doppler, Christian | 1842 | Doppler effect | 
	| Dorn, Friedrich Ernst | 1899 - 1910 | Radon
	(atomic number 86) | 
	| Douady, Adrien | 1975 | Fractal | 
	| Drebbel, Cornelis | 1590 - 1608 | Microscope and telescope | 
	| 1620 | Submarine | 
	| Druin, V. A. | 1970 | Dubnium
	(atomic number 105) | 
	| Dubois, Eugène | 1891 | Java man | 
	| Dumortier, Barthélemy Charles Joseph | 1839 | Cell theory | 
	| Duncan, Robert | 1992 | Magnetar | 
	| Dunwoody, Henry Harrison Chase | 1874, 1904 | Crystal diode | 
	| Dyson, Freeman | 1948 | Quantum electrodynamics | 
	| Easton, Roger L. | 1978 | Global Positioning System | 
	| Eckert, J. Presper | 1946 | ENIAC | 
	| Eddington, Arthur | 1920 | Stellar evolution | 
	| Edison, Thomas | 1802 - 1879 | Incandescent light | 
	| 1873, 1880 | Thermionic emission | 
	| 1876 | Industrial research laboratory | 
	| 1888 - 1926 | Cinematography | 
	| Edson, Marcellus Gilmore | 1884 | Peanut butter | 
	| Prehistoric Egyptians | 4400-3100 BCE | Cosmetic pigment | 
	| Old Kingdom of Egypt | 2782 BCE | Egyptian calendar | 
	| Ehrlich, Paul | 1910 | Chemotherapy | 
	| Eichengrün, Arthur | 1897 | Aspirin | 
	| Eijkman, Christiaan | 1913 - 1930 | Vitamin discoveries: B | 
	| Einstein, Albert | 1900 | Quanta | 
	| 1905 | Special relativity | 
	| 1908 | Brownian motion | 
	| 1915 | General relativity | 
	| 1917 - 1960 | Stimulated emission | 
	| 1922, 1926 | Absorption refrigerator | 
	| 1925 | Bose-Einstein condensate | 
	| Ekeberg, Anders Gustaf | 1802 | Tantalum
	(atomic number 73) | 
	| Ekman, Vagn Walfrid | 1902 | Ekman transport | 
	| Elhuyar, Juan José | 1781, 1783 | Tungsten
	(atomic number 74) | 
	| Elhuyar, Fausto | 1781, 1783 | Tungsten
	(atomic number 74) | 
	| Elsasser, Walter M. | 1946 | Dynamo theory | 
	| Enders, John Franklin | 1955 | Polio vaccine | 
	| Endo, Morinobu | 1952 - 1991 | Fullerene | 
	| Eratosthenes | 240 BCE | Geodesy | 
	| Ermakov, V. A. | 1958 | Nobelium
	(atomic number 102) | 
	| Eskola, Kari | 1969 | Rutherfordium
	(atomic number 104) | 
	| 1970 | Dubnium
	(atomic number 105) | 
	| Eskola, Pirkko | 1969 | Rutherfordium
	(atomic number 104) | 
	| 1970 | Dubnium
	(atomic number 105) | 
	| Esmark, Morten Thrane | 1829 | Thorium
	(atomic number 90) | 
	| Euclid | 300 BCE | Geometry | 
	| Euler, Leonhard | 1683 | Euler’s number | 
	| 1736 | Graph theory | 
	| 1736 - 1895 | Topology | 
	| 1758 | Euler characteristic | 
	| Evans, Herbert McLean | 1913 - 1930 | Vitamin discoveries: E | 
	| Evans, Oliver | 1805 - 1876 | Vapor-compression refrigeration | 
	| 1805 | Oruktor Amphibolos | 
	| Evelyn, John | 1661 | Air pollution | 
	| Eyde, Sam | 1784, 1903 | Birkeland-Eyde process | 
	| Fahrenheit, Daniel Gabriel | 1724 | Fahrenheit scale | 
	| Fajans, Kazimierz | 1913 | Radioactive displacement law | 
	| Falcke, Heino | 2013 | Blitzar | 
	| Faraday, Michael | 1820 | Electromagnetism | 
	| 1823 | Liquefaction of gases | 
	| 1825 | Benzene | 
	| 1831 | Faraday’s law of induction | 
	| 1831 | Electric generator | 
	| 1831 | Faraday wave | 
	| 1834 | Laws of electrolysis | 
	| 1834 | Ion | 
	| 1834 | Faraday efficiency | 
	| 1836 | Faraday cage | 
	| 1845 | Diamagnetism | 
	| 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| 1852 - 1854 | Ideomotor phenomenon | 
	| Faure, Camille Alphonse | 1859, 1881 | Lead-acid battery | 
	| Fefilov, B. V. | 1970 | Dubnium
	(atomic number 105) | 
	| Ferguson, James | 1759, 1764 | Pyrometer | 
	| de Fermat, Pierre | 1654 | Probability theory | 
	| 1657 | Diophantine equation: Pell’s equation | 
	| 1662 | Fermat’s principle | 
	| Fermi, Enrico | 1942 | Nuclear energy | 
	| Fessenden, Reginald | 1901 | Heterodyne | 
	| 1902 | Hot wire barretter | 
	| 1903 | Electrolytic detector | 
	| 1906 | AM broadcasting | 
	| 1912 | Sonar | 
	| Feynman, Richard | 1948 | Quantum electrodynamics | 
	| 1948 | Feynman diagram | 
	| Fibonacci (Leonardo Pisano Bigollo) | 1202 | Number system | 
	| Fischer, Herman Emil | 1894 | Enzyme specificity | 
	| Fisher, Ronald | 1918 | Neo-Darwinism | 
	| Fitch, Val | 1964 | CP violation | 
	| FitzGerald, George Francis | 1889 | Length contraction | 
	| Fleming, Alexander | 1928 | Penicillin | 
	| Fleming, John Ambrose | 1904 | Fleming valve | 
	| Flemming, Walther | 1878 | Mitosis | 
	| Flyorov, Georgy | 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| 1970 | Dubnium
	(atomic number 105) | 
	| Folger, H. | 1984 | Hassium
	(atomic number 108) | 
	| 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| 1996 | Copernicium
	(atomic number 112) | 
	| de Forest, Lee | 1906 - 1912 | Triode | 
	| Foucault, Léon | 1851 | Foucault’s pendulum | 
	| Fox, George E. | 1999 | Three-domain system | 
	| della Francesca, Piero | 1413 - 1420 | Perspective | 
	| Frank, Ilya | 1934 | Cherenkov radiation | 
	| Franklin, Benjamin | 1747 | Electric charge | 
	| von Fraunhofer, Joseph | 1814 | Spectral lines | 
	| Frenkel, Yakov | 1930 - 2014 | Quasiparticles: Exciton | 
	| Fresnel, Augustin-Jean | 1678, 1816 | Huygens—Fresnel principle | 
	| 1819 | Wave optics | 
	| von Frisch, Karl | 1935 | Instincts | 
	| 1945 | Dancing bees | 
	| Frisch, Otto Robert | 1942 | Nuclear energy | 
	| Freud, Sigmund | 1895 | Libido | 
	| Gabor, Dennis | 1947 | Holography | 
	| Gadolin, Johan | 1794 - 1843 | Yttrium
	(atomic number 39) | 
	| Gahn, Johan Gottlieb | 1770 - 1774 | Manganese
	(atomic number 25) | 
	| 1817 | Selenium
	(atomic number 34) | 
	| Galambos, Robert | 1940 | Bat echolocation | 
	| Galen | 180 | Medical research | 
	| Galilei, Galileo | 1610 | Observational astronomy | 
	| 1638 | Kinematics | 
	| Galilei, Vincenzo | 1637 | Mersenne’s laws | 
	| Gall, Joseph G. | 1971 - 1977 | Telomere | 
	| Galle, Johann Gottfried | 1846 | Discovery of Neptune | 
	| Galton, Francis | 1889 | Measuring individuals | 
	| Galvani, Luigi | 1791, 1820 | Galvanometer | 
	| Garrod, Archibald | 1909 | Inborn errors of metabolism | 
	| Gascoigne, William | 1638 | Micrometer | 
	| Gauss, Carl Friedrich | 1801 | Discovery of an asteroid | 
	| 1833 | Electrical telegraph | 
	| Gavrilov, K. A. | 1970 | Dubnium
	(atomic number 105) | 
	| Gay-Lussac, Joseph Louis | 1808 | Boron
	(atomic number 5) | 
	| 1811 | Iodine
	(atomic number 53) | 
	| 1823 | Silicon
	(atomic number 14) | 
	| Geiger, Hans | 1935 | Geiger counter | 
	| Geißler, Heinrich | 1857 | Geissler tube | 
	| Gellibrand, Henry | 1635 | Magnetic declination | 
	| Gell-Mann, Murray | 1964 | Quark | 
	| Gelmo, Paul | 1908, 1935 | Sulfanilamide | 
	| Gessner, Conrad | 1565 | Fossils | 
	| Getting, Ivan A. | 1978 | Global Positioning System | 
	| Geoffroy, Claude François | 1753 | Bismuth
	(atomic number 83) | 
	| Giardina, G. | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Ghiorso, Albert | 1944 | Curium
	(atomic number 96) | 
	| 1944 | Americium
	(atomic number 95) | 
	| 1949 | Berkelium
	(atomic number 97) | 
	| 1950 | Californium
	(atomic number 98) | 
	| 1952 | Einsteinium
	(atomic number 99) | 
	| 1952 | Fermium
	(atomic number 100) | 
	| 1952 | Mendelevium
	(atomic number 101) | 
	| 1958 | Nobelium
	(atomic number 102) | 
	| 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| 1969 | Rutherfordium
	(atomic number 104) | 
	| 1970 | Dubnium
	(atomic number 105) | 
	| 1974 | Seaborgium
	(atomic number 106) | 
	| Gibbs, Josiah Willard | 1873 | Gibbs free energy | 
	| 1876 | Chemical potential | 
	| Gilbert, William | 1600 | Magnetism | 
	| Giesel, Friedrich Oskar | 1899, 1902 | Actinium
	(atomic number 89) | 
	| Gikal, Boris N. | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| Glendenin, Lawrence E. | 1945 | Promethium
	(atomic number 61) | 
	| Gmelin, Leopold | 1825, 1826 | Bromine
	(atomic number 35) | 
	| Goldschmidt, Victor | 1937 | Goldschmidt classification | 
	| Gödel, Kurt | 1931 | Incompleteness theorems | 
	| Göhring, Oswald Helmuth | 1913 - 1918 | Protactinium
	(atomic number 91) | 
	| Golgi, Camillo | 1889 | Nervous system | 
	| Goodall, Jane | 1960 - 1975 | Chimpanzees and humans | 
	| Gordon, James P. | 1917 - 1960 | Stimulated emission | 
	| Gorrie, John | 1805 - 1876 | Vapor-compression refrigeration | 
	| Gorshkov, Vladimir A. | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Gram, Hans Christian | 1884 | Gram staining | 
	| Gregor, William | 1791 - 1910 | Titanium
	(atomic number 22) | 
	| Gregory, James | 1668, 1669 | Fundamental theorem of calculus | 
	| Greider, Carol W. | 1971 - 1977 | Telomere | 
	| Grew, Nehemiah | 1670, 1886 | Palynology | 
	| 1684 | Fingerprint | 
	| Griffin, Donald | 1940 | Bat echolocation | 
	| Griffith, Frederick | 1928 | Transformation | 
	| Grimm, Rudolf | 2003 | Fermionic condensate | 
	| Guérin, Camille | 1921 | Tuberculosis vaccine | 
	| Gulbekian, Georgy G. | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| Gutenberg, Johannes | 1455 | Movable-type printing | 
	| Guthrie, Frederick | 1873, 1880 | Thermionic emission | 
	| Guyton de Morveau, Louis-Bernard | 1803, 1830 | Platinum pyrometer | 
	| Haber, Fritz | 1909 | Synthesis of ammonia | 
	| Hadley, George | 1735 | Trade winds | 
	| Hahn, Otto | 1913 - 1918 | Protactinium
	(atomic number 91) | 
	| 1942 | Nuclear fission | 
	| Haldane, J. B. S. | 1918 | Neo-Darwinism | 
	| Hall, James | 1797 | Catastrophist geology | 
	| Halley, Edmond | 1705 | Halley’s comet | 
	| Hamilton, W. D. | 1964 | Altruism | 
	| Hankin, Ernest Hanbury | 1896 | Preventing cholera | 
	| Harriot, Thomas | 984, 1602, 1621, 1637 | Snell’s law | 
	| Harris, James Andrew | 1969 | Rutherfordium
	(atomic number 104) | 
	| 1970 | Dubnium
	(atomic number 105) | 
	| Harrison, James | 1805 - 1876 | Vapor-compression refrigeration | 
	| Harvey, Bernard G. | 1955 | Mendelevium
	(atomic number 101) | 
	| Harvey, William | 1628 | Circulation of the blood | 
	| Hatchett, Charles | 1801 | Niobium
	(atomic number 41) | 
	| Hauksbee, Francis | 1705, 1894 | Gas-discharge lamp | 
	| Hausdorff, Felix | 1918, 1975 | Fractal dimension | 
	| de Hautefeuille, Jean | 1678 - 1876 | Internal combustion engine | 
	| Hawking, Stephen | 1974 | Hawking radiation | 
	| Hayflick, Leonard | 1961 | Hayflick limit | 
	| Haygarth, John | 1799 | Placebo effect | 
	| Heath, James R. | 1952 - 1991 | Fullerene | 
	| Heaviside, Oliver | 1899 | Loading coil | 
	| 1934 | Cherenkov radiation | 
	| Heisenberg, Werner | 1925 | Wave-particle duality | 
	| 1925, 1926 | Pauli exclusion principle/Exchange interaction | 
	| 1927 | Uncertainty principle | 
	| Hellman, Martin | 1976 - 1991 | Public-key cryptography | 
	| Hellriegel, Hermann | 1888 | Nitrogen fixation | 
	| d’Herelle, Félix | 1915, 1917 | Bacteriophage | 
	| Hermann, Karl Samuel Leberecht | 1817 | Cadmium
	(atomic number 48) | 
	| Herschel, John | 1842 | Cyanotype | 
	| Herschel, William | 1781 | Discovery of Uranus | 
	| Hero of Alexandria (Heron) | 70 | Windmill | 
	| Hertz, Heinrich | 1896 | Radio | 
	| 1904 | Telemobiloscope | 
	| Hertzsprung, Ejnar | 1920 | Stellar evolution | 
	| Hess, Victor Francis | 1911 | Cosmic rays | 
	| Heßberger, Fritz Peter | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| 1996 | Copernicium
	(atomic number 112) | 
	| von Hevesy, Georg | 1913 - 1918 | Protactinium
	(atomic number 91) | 
	| 1942 | Nuclear fission | 
	| Hill, Lester S. | 118 BCE - 1953 | Cipher: Hill cipher | 
	| Hillel II | 359 | Hebrew calendar | 
	| Hindley, Henry | 1739 | Dividing engine | 
	| Hingmann, R. | 1984 | Hassium
	(atomic number 108) | 
	| Hipparchus | 134 BCE | Astronomy | 
	| Hippocrates | 400 BCE | Medicine | 
	| Hiriyuki, Koura | 2012 | Nihonium
	(atomic number 113) | 
	| Hisinger, Wilhelm | 1803 | Cerium
	(atomic number 58) | 
	| Hittorf, Johann Wilhelm | 1869 | Cathode ray | 
	| Hjelm, Peter Jacob | 1778, 1781 | Molybdenum
	(atomic number 42) | 
	| Hodgkin, Alan Lloyd | 1952 | Nerve impulses | 
	| Hodgkin, Dorothy | 1945 | Structure of penicillin | 
	| Hoffmann, Felix | 1897 | Aspirin | 
	| Hofmann, Sigurd | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| 1996 | Copernicium
	(atomic number 112) | 
	| Hogg, John | 1860 | Protist | 
	| Holberton, Betty | 1946 | ENIAC | 
	| Holborn, Ludwig | 1901 | Disappearing-filament pyrometer | 
	| Hope, Thomas Charles | 1790, 1808 | Strontium
	(atomic number 38) | 
	| Hooke, Robert | 1665 | Cell | 
	| 1673 | Microorganisms | 
	| 1682 | Memory | 
	| Hopkins, Frederick Gowland | 1906 | Vitamins | 
	| Horrocks, Jeremiah | 1639 | Transit of Venus | 
	| Huangdi | 2637 BCE | Chinese calendar | 
	| Hubble, Edwin | 1918 | The universe | 
	| 1929 | Expanding universe | 
	| Hughes, Vernon W. | 1960 | Muonium | 
	| Hulet, E. Kenneth | 1974 | Seaborgium
	(atomic number 106) | 
	| Hülsmeyer, Christian | 1904 | Telemobiloscope | 
	| von Humboldt, Alexander | 1799 | Humboldt’s voyage | 
	| Hunter, John | 1796 | Comparative anatomy | 
	| Hunter, Matthew | 1791 - 1910 | Titanium
	(atomic number 22) | 
	| Hutton, James | 1785 | Earth cycles | 
	| 1797 | Catastrophist geology | 
	| Huxley, Andrew | 1952 | Nerve impulses | 
	| Huxley, Thomas Henry | 1846 - 1868 | Protoplasm | 
	| 1860 | Archaeopteryx | 
	| Huygens, Christiaan | 1656 | Rings of Saturn | 
	| 1657 | Pendulum clock | 
	| 1678 - 1876 | Internal combustion engine | 
	| 1678, 1816 | Huygens—Fresnel principle | 
	| 1817 | Kater’s pendulum | 
	| Hyder Ali | 1780 | Mysorean rockets | 
	| Ideguchi, Eiji | 2012 | Nihonium
	(atomic number 113) | 
	| Iijima, Sumio | 1952 - 1991 | Fullerene | 
	| Ikeda, Kikunae | 1908 | Umami | 
	| Iliev, S. | 2000 | Livermorium
(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| Imhotep | 2648 BCE | Step pyramid | 
	| Ingersoll, Leonard R. | 1914 | Glossmeter | 
	| Isaacson, Richard A. | 1967 | LIGO | 
	| Itkis, Michael Grigorievich | 1999-2007 | Flerovium
	(atomic number 114) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Ivanov, O. V. | 2000 | Livermorium
	(atomic number 116) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| James, Charles | 1907 | Lutetium
	(atomic number 71) | 
	| James, Ralph A. | 1944 | Curium
	(atomic number 96) | 
	| 1944 | Americium
	(atomic number 95) | 
	| Janssen, Pierre | 1868 - 1895 | Helium
	(atomic number 2) | 
	| Janssen, Zacharias | 1590 - 1608 | Microscope and telescope | 
	| Jansky, Karl Guthe | 1933 | Radio astronomy | 
	| Jenner, Edward | 1796 | Vaccination | 
	| Jin, Deborah | 2003 | Fermionic condensate | 
	| Joliot-Curie, Frédéric | 1935 | Induced radioactivity | 
	| Joliot-Curie, Irène | 1935 | Induced radioactivity | 
	| Joule, James Prescott | 1842 | Magnetostriction | 
	| 1842 | Conservation of energy | 
	| 1847 | Laws of thermodynamics | 
	| 1852 | Joule-Thomson effect | 
	| Kabachenko, Petrovich Kabachenko | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Kaji, Daiya | 2012 | Nihonium
	(atomic number 113) | 
	| Kanner, Leo | 1938, 1943 | Autism | 
	| Kapitsa, Pyotr | 1937 | Superfluidity | 
	| Kater, Henry | 1817 | Kater’s pendulum | 
	| Katori, Kenji | 2012 | Nihonium
	(atomic number 113) | 
	| Keeling, Charles David | 1961 | Keeling curve | 
	| Kekulé, August | 1865 | Benzene ring | 
	| Keller, J. | 1984 | Hassium
	(atomic number 108) | 
	| Kelvin, William Thomson Lord | 1848 | Kelvin scale | 
	| 1879 | Kelvin wave | 
	| 1852 | Joule-Thomson effect | 
	| 1888 | Ampere balance | 
	| Kendrew, John | 1958 - 1959 | Protein crystallography | 
	| Kennedy, Joseph W. | 1940 | Plutonium
	(atomic number 94) | 
	| Kepler, Johannes | 1609 | Planetary orbits | 
	| Kerr, John | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| Ketterle, Wolfgang | 2003 | Fermionic condensate | 
	| Kharitonov, Yu. P. | 1970 | Dubnium
	(atomic number 105) | 
	| Khomskii, Daniel I. | 1930 - 2014 | Quasiparticles: Orbiton | 
	| Kidston, Robert | 1670, 1886 | Palynology | 
	| Kikunaga, Hidetoshi | 2012 | Nihonium
	(atomic number 113) | 
	| Kirchhoff, Gustav | 1859 | Analytical spectroscopy | 
	| 1860, 1882 | Caesium
	(atomic number 55) | 
	| 1861 | Rubidium
	(atomic number 37) | 
	| Kitaibel, Pál | 1782 | Tellurium
	(atomic number 52) | 
	| Kitasato, Shibasaburō | 1890 | Antitoxins | 
	| Klaproth, Martin Heinrich | 1782 | Tellurium
	(atomic number 52) | 
	| 1789, 1824 | Zirconium
	(atomic number 40) | 
	| 1789, 1841 | Uranium
	(atomic number 92) | 
	| 1791 - 1910 | Titanium
	(atomic number 22) | 
	| 1803 | Cerium
	(atomic number 58) | 
	| Klein, Oskar | 1971 | Plasma cosmology | 
	| von Kleist, Ewald Georg | 1745 - 1746 | Leyden jar | 
	| Kleitman, Nathaniel | 1953 | Rapid-eye-movement sleep | 
	| Knudsen, Martin | 1879 | Thermal transpiration | 
	| von Kobell, Wolfgang Franz | 1801 | Niobium
	(atomic number 41) | 
	| Koch, Robert | 1854, 1884 | Vibrio cholerae | 
	| 1876 | Bacillus anthracis | 
	| 1882 | Mycobacterium tuberculosis | 
	| Kolesov, I. V. | 1970 | Dubnium
	(atomic number 105) | 
	| Kouveliotou, Chryssa | 1992 | Magnetar | 
	| Krebs, Hans Adolf | 1937 | Citric-acid cycle | 
	| Kroto, Harold | 1952 - 1991 | Fullerene | 
	| Kudo, Hisaaki | 2012 | Nihonium
	(atomic number 113) | 
	| Kurlbaum, Ferdinand | 1901 | Disappearing-filament pyrometer | 
	| Kwolek, Stephanie | 1964 | Kevlar | 
	| Lamarck, Jean-Baptiste | 1809 | Acquired characteristics | 
	| Lamarr, Hedy | 1942 | Frequency-hopping | 
	| Lambert, Johann Heinrich | 1768 | Pi | 
	| Lamy, Claude-Auguste | 1861 - 1862 | Thallium
	(atomic number 81) | 
	| Landau, Len | 1930 - 2014 | Quasiparticles: Polaron, roton & maxon | 
	| Landsteiner, Karl | 1901 | Blood groups | 
	| Langen, Eugen | 1678 - 1876 | Internal combustion engine | 
	| Langlet, Nils Abraham | 1868 - 1895 | Helium
	(atomic number 2) | 
	| Langley, Samuel Pierpont | 1878 | Bolometer | 
	| Langmuir, Irving | 1906 - 1912 | Triode | 
	| 1924 - 1928 | Plasma | 
	| 1927 | Langmuir circulation | 
	| 1928 - 1929 | Plasma oscillation | 
	| Langton, Christopher | 1986 | Artificial life | 
	| Laplace, Pierre-Simon | 1796 | Origin of our solar system | 
	| Larsh, Almon | 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Lartet, Édouard | 1834 | Cro-Magnons | 
	| Lartet, Louis | 1834 | Cro-Magnons | 
	| Latimer, Robert M. | 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Lattes, César | 1934, 1947 | Meson | 
	| von Laue, Max | 1911 - 1920 | Sagnac effect | 
	| Laughlin, Robert B. | 1930 - 2014 | Quasiparticles: Fractional quantum Hall effect | 
	| Laveran, Charles Louis Alphonse | 1897 | Malarial parasite | 
	| Lavoisier, Antoine | 1774 | Combustion
	(atomic number 8) | 
	| 1774 | Conservation of mass | 
	| 1787 | Chemical nomenclature | 
	| 1823 | Silicon
	(atomic number 14) | 
	| Lavrentiev, Anton Yurievich | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Leakey, Louis | 1959 | Paranthropus boisei | 
	| Leakey, Mary | 1959 | Paranthropus boisei | 
	| Leavitt, Henrietta Swan | 1918 | The universe | 
	| Lee, Tsung-Dao | 1956 | Parity violation | 
	| van Leeuwenhock, Antonie | 1673 | Microorganisms | 
	| 1719 | Cell | 
	| Lehmann, Inge | 1936 | Inner core | 
	| Leibniz, Gottfried Wilhelm | 1647 - 1678 | Philosophical language: Lingua generalis | 
	| 1679 | Binary number | 
	| 1684 | Calculus | 
	| 2400 BCE - 1820 CE | Computing devices: Stepped Reckoner | 
	| Leidenfrost, Johann Gottlob | 1756 | Leidenfrost effect | 
	| Leino, Matti | 1984 | Hassium
	(atomic number 108) | 
	| Lemaître, Georges | 1929 | Expanding universe | 
	| Lenoir, Étienne | 1678 - 1876 | Internal combustion engine | 
	| Le Prince, Louis | 1888 - 1927 | Cinematography | 
	| Leslie, John | 1818 | Aethrioscope | 
	| Levi-Montalcini, Rita | 1952 | Nerve growth | 
	| Lewis, Gilbert N. | 1916 | Chemical bond | 
	| Lhuilier, Antoine-Jean | 1736 - 1895 | Topology | 
	| Liang Lingzan | 2400 BCE - 1820 CE | Computing devices | 
	| Libby, Willard | 1947 | Radiocarbon dating | 
	| von Linde, Carl | 1805 - 1876 | Vapor-compression refrigeration | 
	| von Lindemann, Ferdinand | 1768 | Pi | 
	| Linnaeus, Carl | 1735 | Naming species | 
	| Lippershey, Hans | 1590 - 1608 | Microscope and telescope | 
	| Lippmann, Gabriel | 1880, 1881 | Piezoelectricity | 
	| Lister, Joseph | 1865 | Antiseptic surgery | 
	| Listing, Johann Benedict | 1736 - 1895 | Topology | 
	| Lobachevsky, Nicolai | 1829 | Non-Euclidean geometry | 
	| Lobanov, Yu. V. | 1970 | Dubnium
	(atomic number 105) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Lockyer, Norman | 1868 - 1895 | Helium
	(atomic number 2) | 
	| Lodwick, Francis | 1647 - 1678 | Philosophical language: Common Writing | 
	| Loewi, Otto | 1914 | Neurotransmitters | 
	| Long, Crawford | 1842 - 1846 | Anesthesia | 
	| Lorentz, Hendrik | 1904 | Lorentz transformations | 
	| Lorenz, Konrad | 1935 | Instincts | 
	| Lo Surdo, Antonino | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| Lougheed, Ronald W. | 1974 | Seaborgium
	(atomic number 106) | 
	| Lovelace, Ada | 1822 | The first computer program | 
	| Löwig, Carl Jacob | 1825, 1826 | Bromine
	(atomic number 35) | 
	| Lu Ban | 5th century BCE | Kite | 
	| Lukin, Mikhail | 2017 | Time crystal | 
	| Lumière, Auguste and Louis | 1888 - 1927 | Cinematography | 
	| Lukyanovich, V. M. | 1952 - 1991 | Fullerene | 
	| Luria, Salvador | 1943 | Bacterial genes | 
	| Luttinger, Joaquin Mazdak | 1930 - 2014 | Quasiparticles: Holon and spinon | 
	| Lyell, Charles | 1830 | Principles of geology | 
	| MacKenzie, Kenneth Ross | 1940 | Astatine
	(atomic number 85) | 
	| MacLeod, Colin Munro | 1944 | Molecular genetics | 
	| Maelzel, Johann Nepomuk | 1814 - 1815 | Metronome | 
	| Magnus, Heinrich Gustav | 1672, 1742, 1852 | Magnus effect | 
	| Maiman, Theodore Harold | 1917 - 1960 | Stimulated emission | 
	| Maimonides | 359 | Hebrew calendar | 
	| Majorana, Ettore | 1930 - 2014 | Quasiparticles: Majorana fermion | 
	| 1935 | Majorana fermion | 
	| Malthus, Thomas Robert | 1798 | Population pressure | 
	| Malyshev, Oleg Nikolaevich | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Mandelbrot, Benoit | 1918, 1975 | Fractal dimension | 
	| 1975 | Fractal | 
	| Manson, Patrick | 1897 | Malarial parasite | 
	| Marangoni, Carlo | 1855, 1865 | Marangoni effect | 
	| Marconi, Guglielmo | 1896 | Radio | 
   | 1896, 1902 | Magnetic detector | 
	| Marggraf, Andreas Sigismund | 1764 | Fluorine
	(atomic number 9) | 
	| de Marignac, Jean Charles Galissard | 1801 | Niobium
	(atomic number 41) | 
	| 1878, 1907 | Ytterbium
	(atomic number 70) | 
	| 1880 | Gadolinium
	(atomic number 64) | 
	| Marinsky, Jacob A. | 1945 | Promethium
	(atomic number 61) | 
	| Marker, Russell Earl | 1944 - 1960 | The pill | 
	| Martel, Édouard-Alfred | 1895 | Speleology | 
	| Marten, Benjamin | 1882 | Mycobacterium tuberculosis | 
	| Matteucci, Felice | 1678 - 1876 | Internal combustion engine | 
	| Matuyama, Motonori | 1929 | Geomagnetic reversals | 
	| Maudslay, Henry | 1638 | Micrometer | 
	| Mauchly, John | 1946 | ENIAC | 
	| Maxwell, James Clerk | 1656 | Rings of Saturn | 
	| 1864 | Maxwell’s equations | 
	| Mayan | 1050 | Maya calendar | 
	| von Mayer, Julius | 1842 | Conservation of energy | 
	| McCarty, Maclyn | 1944 | Molecular genetics | 
	| McClintock, Barbara | 1951 | Jumping genes | 
	| McCormick, Katharine | 1944 - 1960 | The pill | 
	| McCulloch, Warren Sturgis | 1943 | Neural networks | 
	| McCollum, Elmer | 1913 - 1930 | Vitamin discoveries: A, B, and D | 
	| McMillan, Edwin | 1940 | Neptunium
	(atomic number 93) | 
	| 1940 | Plutonium
	(atomic number 94) | 
	| Medawar, Peter | 1949 | Immune tolerance | 
	| Meissner, Walther | 1933 | Meissner effect | 
	| Meitner, Lise | 1913 - 1918 | Protactinium
	(atomic number 91) | 
	| 1942 | Nuclear fission | 
	| Mellanby, Edward | 1913 - 1930 | Vitamin discoveries: D | 
	| Meltzer, Marlyn | 1946 | ENIAC | 
	| Mendel, Gregor Johann | 1865 | Laws of inheritance | 
	| Mendel, Lafayette | 1913 - 1930 | Vitamin discoveries: A and B | 
	| Mendeleev, Dmitri | 1869 | Periodic table | 
	| 1875 | Gallium
	(atomic number 31) | 
	| 1879 | Scandium
	(atomic number 21) | 
	| 1886 | Germanium
	(atomic number 32) | 
	| Mercator, Gerardus | 1569 | Mercator projection | 
	| Merkle, Ralph | 1976 - 1991 | Public-key cryptography | 
	| Mersenne, Marin | 1637 | Mersenne’s laws | 
	| Metchnikoff, Élie | 1882 | Cellular immunity | 
	| Metius, Jacob | 1590 - 1608 | Microscope and telescope | 
	| Mezentsev, A. N. | 2000 | Livermorium
(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Michell, John | 1784 | Black hole | 
	| 1798 | ‘Weighing’ the world | 
	| Michelson, Albert A. | 1887 | Michelson-Morley experiment | 
	| Mikheev, V. L. | 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Milanković, Milutin | 1914 | Climate cycles | 
	| Miller, Frank | 118 BCE - 1953 | Cipher: One-time pad | 
	| Miller, Stanley | 1953 | Abiogenesis | 
	| Minard, Charles Joseph | 1644 - 1869 | Infographics | 
	| Minot, George Richards | 1913 - 1930 | Vitamin discoveries: B12 | 
	| Miramontes, Luis E. | 1944 - 1960 | The pill | 
	| Misener, Don | 1937 | Superfluidity | 
	| Möbius, August Ferdinand | 1736 - 1895 | Topology | 
	| von Mohl, Hugo | 1839 | Cell theory | 
	| 1846 | Protoplasm | 
	| Mohorovičić, Andrija | 1906 | Earth interior | 
	| Mohorovičić, Stjepan | 1932 - 1951 | Positronium | 
	| Mohs, Friedrich | 1812 | Mohs scale | 
	| Moissan, Henri | 1886 | Fluorine
	(atomic number 9) | 
	| Monroe, Christopher | 2017 | Time crystal | 
	| Montgolfier, Joseph-Michel | 1772, 1796 | Hydraulic ram | 
	| Morgan, Leon O. | 1944 | Americium
	(atomic number 95) | 
	| Morgan, Thomas Hunt | 1910 | Genes | 
	| Morgenstern, Oskar | 1944 | Game theory | 
	| Morimoto, Kouji | 2012 | Nihonium
	(atomic number 113) | 
	| Morita, Kōsuke | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| 2012 | Nihonium
	(atomic number 113) | 
	| Morland, Samuel | 2400 BCE - 1820 CE | Computing devices | 
	| Morley, Edward W. | 1887 | Michelson-Morley experiment | 
	| Morse, Harmon Northrup | 1901 | Disappearing-filament pyrometer | 
	| Morse, Samuel | 1816 | Electrical telegraph | 
	| Morton, William T. G. | 1842 - 1846 | Anesthesia | 
	| Mosander, Carl Gustaf | 1794 - 1843 | Yttrium
	(atomic number 39) | 
	| 1839 | Cerium
	(atomic number 58) | 
	| 1839 | Lanthanum
	(atomic number 57) | 
	| 1843 | Terbium
	(atomic number 65) | 
	| 1843 | Erbium
	(atomic number 68) | 
	| Moseley, Henry | 1913 | Atomic battery | 
	| Mössbauer, Rudolf | 1958 | Mössbauer effect | 
	| Mouton, Henri | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| Mozi | 5th century BCE | Kite | 
	| Mpemba, Erasto Batholomeo | 1963 | Mpemba effect | 
	| Müller, Fritz | 1878 | Müllerian mimicry | 
	| Müller, Gerhard Friedrich | 1743 | Ethnography | 
	| Muller, Hermann Joseph | 1910 | Genes | 
	| Müller, Paul Hermann | 1939 | DDT | 
	| Müller, Walther | 1935 | Geiger counter | 
	| Munters, Carl | 1922, 1926 | Absorption refrigerator | 
	| Münzenberg, Gottfried | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| Murphy, George M. | 1931 | Deuterium | 
	| Murphy, William | 1913 - 1930 | Vitamin discoveries | 
	| van Musschenbroek, Pieter | 1745 - 1746 | Leyden jar | 
	| Nagarjuna | 1669 | Zinc
	(atomic number 30) | 
	| Nansen, Fridtjof | 1894 | Nansen bottle | 
	| 1902 | Ekman transport | 
	| Napier, John | 1614 | Logarithms | 
	| 2400 BCE - 1820 CE | Computing devices | 
	| 1617 | Binary number | 
	| Nebel, Fritz | 118 BCE - 1953 | Cipher: ADFGVX cipher | 
	| Neddermeyer, Seth | 1936 | Muon | 
	| von Neumann, John | 1944 | Game theory | 
	| 1946 | Computer | 
	| 1946 | ENIAC | 
	| 1948 | Cellular automaton | 
	| Newton, Isaac | 1666 | Theory of color | 
	| 1671 | Calculus | 
	| 1672, 1742, 1852 | Magnus effect | 
	| 1687 | Principia Mathematica | 
	| 1701 | Newton scale | 
	| Nicol, William | 1828 | Nicol prism | 
	| van Niel, C. B. | 1925, 1962 | Prokaryote and eukaryote | 
	| Niépce, Claude | 1678 - 1876 | Internal combustion engine | 
	| Niépce, Nicéphore | 1678 - 1876 | Internal combustion engine | 
	| Nightingale, Florence | 1644 - 1869 | Infographics | 
	| Nilson, Lars Fredrik | 1879 | Scandium
	(atomic number 21) | 
	| Ninov, Victor | 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| 1996 | Copernicium
	(atomic number 112) | 
	| Niskin, Shale | 1894 | Nansen bottle | 
	| Nitschke, Joachim Michael | 1974 | Seaborgium
	(atomic number 106) | 
	| Nobel, Alfred | 1867 | Dynamite | 
	| Noddack, Walter | 1908, 1925 | Rhenium
	(atomic number 75) | 
	| Noether, Emmy | 1918 | Noether’s theorem | 
	| Nunes, Pedro | 1542 | Nonius | 
	| Nurmia, Matti | 1969 | Rutherfordium
	(atomic number 104) | 
	| 1970 | Dubnium
	(atomic number 105) | 
	| 1974 | Seaborgium
	(atomic number 106) | 
	| Occhialini, Giuseppe | 1934, 1947 | Meson | 
	| Ochsenfeld, Robert | 1933 | Meissner effect | 
	| Odhner, Willgodt Theophil | 2400 BCE - 1820 CE | Computing devices | 
	| Oganessian, Yuri | 1999-2007 | Flerovium
	(atomic number 114) | 
	| 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Ogawa, Masataka | 1908, 1925 | Rhenium
	(atomic number 75) | 
	| Ohm, Georg | 1827 | Ohm’s law | 
	| Ohnishi, Testuya | 2012 | Nihonium
	(atomic number 113) | 
	| Oldham, Richard Dixon | 1906 | Earth interior | 
	| Olovnikov, Alexey | 1971 - 1977 | Telomere | 
	| Onnes, Heike Kamerlingh | 1911 | Superconductivity | 
	| Onsager, Lars | 1930 - 2014 | Quasiparticles: Quantum vortex | 
	| Oort, Jan | 1950 | Oort cloud | 
	| Ørsted, Hans Christian | 1791, 1820 | Galvanometer | 
	| 1820 | Electromagnetism | 
	| 1821, 1834 | Thermoelectric effect | 
	| 1825, 1827 | Aluminium
	(atomic number 13) | 
	| Osborne, Denis G. | 1963 | Mpemba effect | 
	| Osborne, Thomas Burr | 1913 - 1930 | Vitamin discoveries: A and B | 
	| Otto, F. J. | 1846 | Guncotton | 
	| Otto, Nikolaus | 1678 - 1876 | Internal combustion engine | 
	| Oughtred, William | 2400 BCE - 1820 CE | Computing devices | 
	| Owen, Richard | 1842 | Dinosaur | 
	| 1860 | Archaeopteryx | 
	| Owens, Robert Bowie | 1899 - 1910 | Radon
	(atomic number 86) | 
	| Ozawa, Akira | 2012 | Nihonium
	(atomic number 113) | 
	| Pacini, Filippo | 1854, 1884 | Vibrio cholerae | 
	| Palaeolithic people | 99,000-13,000 BCE | Pigment | 
	| Palmieri, Luigi | 1868 - 1895 | Helium
	(atomic number 2) | 
	| Pander, Heinz Christian | 1817 | Germ layers | 
	| Papin, Denis | 1678 - 1876 | Internal combustion engine | 
	| 1679 | Pressure cooker, safety valve | 
	| Paracelsus | 1526 | Bismuth
	(atomic number 83),
	Zinc
	(atomic number 30) | 
	| 1538 | Toxicology | 
	| Parkes, Alexander | 1862 | Celluloid | 
	| Parkinson, Bradford | 1978 | Global Positioning System | 
	| Parson, Alfred Lauck | 1915 | Parson magneton | 
	| Parsons, William | 1845 | Spiral galaxies | 
	| Pascal, Blaise | 2400 BCE - 1820 CE | Computing devices | 
	| 1643 | Atmospheric pressure | 
	| 1654 | Probability theory | 
	| Paschen, Friedrich | 1889 | Paschen’s law | 
	| Pasteur, Louis | 1878 | Germ theory | 
	| 1880 - 1881 | Anthrax vaccine | 
	| 1881 | Streptococcus pneumoniae | 
	| 1885 | Rabies vaccine | 
	| Pauli, Wolfgang | 1925, 1926 | Pauli exclusion principle/Exchange interaction | 
	| 1956 | Neutrino | 
	| Pauling, Linus | 1949 | Sickle-cell disease | 
	| Pavlov, Ivan | 1904 | Conditioned reflexes | 
	| Peckham, George and Elizabeth | 1889 | Aggressive mimicry | 
	| Peierls, Rudolf | 1942 | Nuclear energy | 
	| Péligot, Eugène-Melchoir | 1789, 1841 | Uranium
	(atomic number 92) | 
	| Peltier, Jean Charles Athanase | 1834 | Peltier effect | 
	| Perey, Marguerite | 1939 | Francium
	(atomic number 87) | 
	| Perkin, William Henry | 1856 | Mauve | 
	| Perkins, Jacob | 1805 - 1876 | Vapor-compression refrigeration | 
	| Perl, Martin Lewis | 1971 - 1977 | Tau | 
	| Perrier, Carlo | 1937 | Technetium
	(atomic number 43) | 
	| Perrin, Jean Baptiste | 1811, 1909 | Avogadro constant | 
	| 1908 | Brownian motion | 
	| Perutz, Max | 1958 - 1959 | Protein crystallography | 
	| Petri, Carl Adam | 1962 | Petri net | 
	| Piaget, Jean | 1924 | Child development | 
	| Piazzi, Giuseppe | 1801 | Discovery of an asteroid | 
	| Picard, Jean | 1671 | Surveying the earth | 
	| Pickard, Greenleaf Whittier | 1874, 1904 | Crystal diode | 
	| Pincus, Gregory | 1944 - 1960 | The pill | 
	| Pines, David | 1930 - 2014 | Quasiparticles: Plasmon | 
	| Pirro, Jean | 1839 - 1887 | International auxiliary language: Universalglot | 
	| Pitts, Walter | 1943 | Neural networks | 
	| Planck, Max | 1900 | Planck constant | 
	| 1900 | Quanta | 
	| Planté, Gaston | 1859, 1881 | Lead-acid battery | 
	| von Platen, Baltzar | 1922, 1926 | Absorption refrigerator | 
	| Playfair, William | 1644 - 1869 | Infographics | 
	| Poggendorff, Johann Christian | 1841 | Potentiometer | 
	| Poincaré, Henri | 1736 - 1895 | Topology | 
	| 1903 | Chaos theory | 
	| 1904 | Lorentz transformations | 
	| Polder, Dirk | 1948 | Casimir effect | 
	| Poleni, Giovanni | 2400 BCE - 1820 CE | Computing devices | 
	| Pollak, Karol | 1896 | Diode bridge | 
	| Pollender, Aloys | 1876 | Bacillus anthracis | 
	| Polyakov, A. N. | 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Polybius | 118 BCE - 1953 | Cipher: Polybius square | 
	| Popeko, Andre Georgievich | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Poppensieker, Klaus | 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| Porter, C. E. | 2009 | Tennessine
	(atomic number 117) | 
	| Poulton, Edward Bagnall | 1890 | Aposematism | 
	| Powell, Cecil | 1934, 1947 | Meson | 
	| Power, Henry | 1662 | Boyle’s law | 
	| Prandtl, Ludwig | 1904 | Boundary layer | 
	| Priestley, Joseph | 1774 | Combustion
	(Oxygen - atomic number 8) | 
	| de Prony, Gaspard | 1817 | Kater’s pendulum | 
	| Prout, William | 1815 | Prout’s hypothesis | 
	| Ptolemy, Claudius | 140 | Geocentrism | 
	| Punnett, Reginald | 1904 | Genetic linkage | 
	| Pupin, Mihajlo | 1899 | Loading coil | 
	| Purkyně, Jan Evangelista | 1846 - 1868 | Protoplasm | 
	| Pythagoras | 495 BCE | Proof of the Pythagorean theorem | 
	| 1637 | Mersenne’s laws | 
	| Qvist, Bengt Andersson | 1778, 1781 | Molybdenum
	(atomic number 42) | 
	| Radushkevich, L. V. | 1952 - 1991 | Fullerene | 
	| Ramayya, A. V. | 2009 | Tennessine
	(atomic number 117) | 
	| Ramsay, William | 1868 - 1895 | Helium
	(atomic number 2) | 
	| 1894 | Argon
	(atomic number 18) | 
	| 1898 | Krypton
	(atomic number 36) | 
	| 1898 | Neon
	(atomic number 10) | 
	| 1898 | Xenon
	(atomic number 54) | 
	| 1899 - 1910 | Radon
	(atomic number 86) | 
	| Rayer, Pierre François Olive | 1876 | Bacillus anthracis | 
	| Rayleigh, John William Strutt, Lord | 1894 | Argon
	(atomic number 18) | 
	| de Réaumur, René Antoine Ferchault | 1730 | Réaumur scale | 
	| Redi, Francesco | 1668 | Parasites | 
	| Reich, Ferdinand | 1863 | Indium
	(atomic number 49) | 
	| von Reichenstein, Franz-Joseph Müller | 1782 | Tellurium
	(atomic number 52) | 
	| Reines, Frederick | 1956 | Neutrino | 
	| Willibrord Reisdorf | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| Reynolds, Osborne | 1851 | Reynolds number | 
	| 1879 | Thermal transpiration | 
	| Remak, Robert | 1839 | Cell theory | 
	| Rezzolla, Luciano | 2013 | Blitzar | 
	| Richer, Jean | 1671 | Gravimetry | 
	| Richter, Hieronymous Theodor | 1863 | Indium
	(atomic number 49) | 
	| Riemann, Bernhard | 1829 | Non-Euclidean geometry | 
	| Riley, F. D. | 2009 | Tennessine
	(atomic number 117) | 
	| del Río, Andrés Manuel | 1803 | Vanadium
	(atomic number 23) | 
	| de Rivaz, François Isaac | 1678 - 1876 | Internal combustion engine | 
	| Robbins, Frederick Chapman | 1955 | Polio vaccine | 
	| Roberto, James B. | 2009 | Tennessine
	(atomic number 117) | 
	| Robins, Benjamin | 1672, 1742, 1852 | Magnus effect | 
	| de Rochas, Alphonse Beau | 1678 - 1876 | Internal combustion engine | 
	| Rock, John | 1944 - 1960 | The pill | 
	| Rohach, Jozef | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| Roloff, Johann Christoff Heinrich | 1817 | Cadmium
	(atomic number 48) | 
	| Rømer, Ole | 1676 | Speed of light | 
	| 1701 | Rømer scale | 
	| Roots, Francis Marion | 1860 | Roots blower | 
	| Roots, Philander | 1860 | Roots blower | 
	| Ronalds, Francis | 1816 | Electrical telegraph | 
	| Röntgen, Wilhelm | 1895 | X-rays | 
	| Roscoe, Henry Enfield | 1867 | Vanadium
	(atomic number 23) | 
	| Rose, Heinrich | 1801 | Niobium
	(atomic number 41) | 
	| Rosenkranz, George | 1944 - 1960 | The pill | 
	| Ross, Ronald | 1897 | Malarial parasite | 
	| Rossby, Carl-Gustaf | 1939 | Rossby wave | 
	| Rossignol, Antoine and Bonaventure | 118 BCE - 1953 | Cipher: Great cipher | 
	| Roux, Pierre Paul Émile | 1885 | Rabies vaccine | 
	| Russell, Henry Norris | 1920 | Stellar evolution | 
	| Rutherford, Daniel | 1772 | Nitrogen
	(atomic number 7) | 
	| Rutherford, Ernest | 1896 | Radioactivity | 
   | 1896, 1902 | Magnetic detector | 
	| 1913 | Atom | 
	| 1899 - 1910 | Radon
	(atomic number 86) | 
	| Rykaczewski, M. A. | 2009 | Tennessine
	(atomic number 117) | 
	| Rykaczewski, K. P. | 2009 | Tennessine
	(atomic number 117) | 
	| Sabin, Albert | 1955 | Polio vaccine | 
	| Sagaidak, Roman Nikolaevich | 1999 - 2007 | Flerovium
	(atomic number 114) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Sagnac, Georges | 1911 - 1920 | Sagnac effect | 
	| Sahl, Ibn | 984, 1602, 1621, 1637 | Snell’s law | 
	| Christoph-Clemens Sahm | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| Salk, Jonas | 1955 | Polio vaccine | 
	| Salpeter, Edwin | 1962 - 1964 | Quasar | 
	| Santorio, Santorio | 1614 | Metabolism | 
	| Sanger, Margaret | 1944 - 1960 | The pill | 
	| Saro, S. | 1999 - 2007 | Flerovium
(atomic number 114) | 
	| Sacha, Krzysztof | 2017 | Time crystal | 
	| Sato, Nozomi | 2012 | Nihonium
	(atomic number 113) | 
	| Saunders, Edith Rebecca | 1904 | Genetic linkage | 
	| Sawatzky, George | 1930 - 2014 | Quasiparticles: Orbiton | 
	| Schaaffhausen, Hermann | 1856 | Neanderthal man | 
	| Schiaparelli, Giovanni | 1877 | Canals on Mars | 
	| Schipfer, Joseph | 1839 - 1887 | International auxiliary language: Communicationssprache | 
	| Schleiden, Matthias Jakob | 1839 | Cell theory | 
	| Scheele, Carl Wilhelm | 1774 | Combustion
	(Oxygen - atomic number 8) | 
	| 1770 - 1774 | Manganese
	(atomic number 25) | 
	| 1774, 1808 | Barium
	(atomic number 56) | 
	| 1774, 1810 | Chlorine
	(atomic number 17) | 
	| 1778, 1781 | Molybdenum
	(atomic number 42) | 
	| 1810 | Chlorine | 
	| Schleyer, Johann Martin | 1839 - 1887 | International auxiliary language: Volapük | 
	| Schmidt, Johannes | 1922 | Eel metamorphosis | 
	| Karl-Heinz Schmidt | 1981 | Bohrium
	(atomic number 107) | 
	| 1982 | Meitnerium
	(atomic number 109) | 
	| 1984 | Hassium
	(atomic number 108) | 
	| Schmidt, Maarten | 1962 - 1964 | Quasar | 
	| J. R. H. Schneider | 1981 | Bohrium
	(atomic number 107) | 
	| W. F. W. Schneider | 1981 | Bohrium
	(atomic number 107) | 
	| Schött, H. J. | 1984 | Hassium
	(atomic number 108) | 
	| 1994 | Darmstadtium
	(atomic number 110) | 
	| 1994 | Roentgenium
	(atomic number 111) | 
	| 1996 | Copernicium
	(atomic number 112) | 
	| Schrödinger, Erwin | 1925 | Wave-particle duality | 
	| 1926 | Schrödinger equation | 
	| 1930 | Zitterbewegung | 
	| Schönbein, Christian Friedrich | 1846 | Guncotton | 
	| Schrieffer, John Robert | 1957 | BCS theory | 
	| Schwabe, Heinrich | 1843 | Sunspot cycle | 
	| Schwann, Theodor | 1839 | Cell theory | 
	| Schwarzschild, Karl | 1916 | Schwartzchild radius | 
	| Schweigger, Johann | 1791, 1820 | Galvanometer | 
	| Schwinger, Julian | 1948 | Quantum electrodynamics | 
	| Scoville, Wilbur | 1912 | Scoville scale | 
	| Seaborg, Glenn T. | 1940 | Plutonium
	(atomic number 94) | 
	| 1944 | Curium
	(atomic number 96) | 
	| 1944 | Americium
	(atomic number 95) | 
	| 1949 | Berkelium
	(atomic number 97) | 
	| 1950 | Californium
	(atomic number 98) | 
	| 1952 | Mendelevium
	(atomic number 101) | 
	| 1958 | Nobelium
	(atomic number 102) | 
	| 1974 | Seaborgium
	(atomic number 106) | 
	| Seebeck, Thomas Johann | 1821, 1834 | Thermoelectric effect | 
	| Sefström, Nils Gabriel | 1830 | Vanadium
	(atomic number 23) | 
	| Segrè, Emilio | 1937 | Technetium
	(atomic number 43) | 
	| 1940 | Astatine
	(atomic number 85) | 
	| Setterberg, Carl | 1860, 1882 | Caesium
	(atomic number 55) | 
	| Shannon, Claude | 1948 | Information theory | 
	| Shapley, Harlow | 1918 | The universe | 
	| Sharp, Tom | 2018 | Shɑrpεn | 
	| Shaughnessy, Dawn | 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Shchegolev, V. A. | 1958 | Nobelium
	(atomic number 102) | 
	| 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Shirokovsky, I. V. | 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Shockley, William | 1947 | Transistor | 
	| Siemens, Carl Wilhelm | 1871 | Resistance thermometer | 
	| Sikkeland, Torbjørn | 1958 | Nobelium
	(atomic number 102) | 
	| 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Skinner, B. F. | 1938 | Radical behaviorism | 
	| Skobelev, Nikolai Konstantinovich | 1970 | Dubnium
	(atomic number 105) | 
	| Skyrme, Tony | 1930 - 2014 | Quasiparticles: Skyrmion | 
	| Smalley, Richard | 1952 - 1991 | Fullerene | 
	| Smith, J. L. B. | 1938 | Coelacanth | 
	| Smith, William | 1815 | Fossil sequences | 
	| Snellius, Willebrord | 984, 1602, 1621, 1637 | Snell’s law | 
	| Snow, John | 1854 | Cholera and the pump | 
	| Sobrero, Ascanio | 1847 | Nitroglycerin | 
	| Soddy, Frederick | 1896 | Radioactivity | 
	| 1913 | Radioactive displacement law | 
	| 1913 - 1918 | Protactinium | 
	| 1922 | Isotope | 
	| Sommerfeld, Arnold | 1851 | Reynolds number | 
	| Soret, Jacques-Louis | 1878 - 1879 | Holmium
	(atomic number 67) | 
	| Spallanzani, Lazzaro | 1765 | Spontaneous generation | 
	| Spence, Frances | 1946 | ENIAC | 
	| Stanier, Roger | 1925, 1962 | Prokaryote and eukaryote | 
	| Stark, Johannes | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| Stefan, Josef | 1879 | Stefan-Boltzmann law | 
	| Steno, Nicolas | 1669 | Stratigraphy | 
	| Sternberg, George Miller | 1881 | Streptococcus pneumoniae | 
	| Stevens, Nettie Maria | 1910 | Genes | 
	| Stirling, Robert | 1816 | Stirling engine | 
	| Stokes, George Gabriel | 1847 | Stokes drift | 
	| 1851 | Reynolds number | 
	| Stookey, S. Donald | 1953 | CorningWare | 
	| Størmer, Carl | 1908 - 1958 | Van Allen belts | 
	| Störmer, Horst Ludwig | 1930 - 2014 | Quasiparticles: Fractional quantum Hall effect | 
	| Stoyer, Mark A. | 2000 | Livermorium
(atomic number 116) | 
	| 2004 | Moscovium
(atomic number 115) | 
	| 2006 | Oganesson
(atomic number 118) | 
	| 2009 | Tennessine
(atomic number 117) | 
	| Stoyer, Nancy J. | 2000 | Livermorium
(atomic number 116) | 
	| 2004 | Moscovium
(atomic number 115) | 
	| 2006 | Oganesson
(atomic number 118) | 
	| Strasburger, Eduard | 1878 | Mitosis | 
	| Strassmann, Fritz | 1942 | Nuclear energy | 
	| Street, Kenneth, Jr. | 1950 | Californium
	(atomic number 98) | 
	| Stromeyer, Friedrich | 1817 | Cadmium
	(atomic number 48) | 
	| Sturtevant, Alfred Henry | 1910 | Genes | 
	| Subbotin, V. G. | 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Suda, Toshimi | 2012 | Nihonium
	(atomic number 113) | 
	| Sudowe, R. | 2009 | Tennessine
	(atomic number 117) | 
	| Sueki, Keisuke | 2012 | Nihonium
	(atomic number 113) | 
	| Suess, Eduard | 1885 | Mountain formation | 
	| Sukhov, A. M. | 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Sulzer, Friedrich Gabriel | 1790, 1808 | Strontium
	(atomic number 38) | 
	| Sutton, Walter | 1902 | Boveri-Sutton chromosome theory | 
	| Swammerdam, Jan | 1669 | Epigenesis | 
	| Szent-Györgyi, Albert | 1913 - 1930 | Vitamin discoveries: C | 
	| Szilard, Leo | 1922, 1926 | Absorption refrigerator | 
	| Szostak, Jack W. | 1971 - 1977 | Telomere | 
	| Tacke, Ida | 1908, 1925 | Rhenium
	(atomic number 75) | 
	| Tait, Peter Guthrie | 1771, 1885 | Knot theory | 
	| Tamm, Igor | 1930 - 2014 | Quasiparticles: Phonon | 
	| 1932 | Phonon | 
	| 1934 | Cherenkov radiation | 
	| Teisserenc de Bort, Léons | 1902 | Stratosphere | 
	| Teitelbaum, Ruth | 1946 | ENIAC | 
	| Temin, Howard | 1970 | Reverse transcriptase | 
	| Tennant, Smithson | 1750 | Platinum
	(atomic number 78) | 
	| 1804 | Platinum group metals
	(atomic numbers 76 and 77) | 
	| Ter-Akopian, G. M. | 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Tesla, Nikola | 1705, 1894 | Gas-discharge lamp | 
	| 1913 | Tesla turbine | 
	| Thales of Miletus | 546 BCE | Thales’ theorem | 
	| 546 BCE | Triboelectric effect | 
	| Thénard, Louis Jacques | 1808 | Boron
	(atomic number 5) | 
	| 1823 | Silicon
	(atomic number 14) | 
	| Theophrastus | 320 BCE | Botany | 
	| Thompson, Benjamin | 1847 | Laws of thermodynamics | 
	| Thompson, Christopher | 1992 | Magnetar | 
	| Thompson, Stanley Gerald | 1949 | Berkelium
	(atomic number 97) | 
	| 1950 | Californium
	(atomic number 98) | 
	| 1952 | Mendelevium
	(atomic number 101) | 
	| Thomson, Joseph John | 1897 | Electron | 
	| Thomson, James | 1855, 1865 | Marangoni effect | 
	| Thomson, Thomas | 1823 | Silicon
	(atomic number 14) | 
	| Thorne, Kip | 1967 | LIGO | 
	| B. Thuma | 1981 | Bohrium
	(atomic number 107) | 
	| Tinbergen, Nikolaas | 1935 | Instincts | 
	| Tipu Sultan | 1780 | Mysorean rockets | 
	| Tokanai, Fuyuki | 2012 | Nihonium
	(atomic number 113) | 
	| Tolpygo, Kirill | 1930 - 2014 | Quasiparticles: Polariton | 
	| 1961 | Flexoelectricity | 
	| Tomonaga, Shin'ichirō | 1930 - 2014 | Quasiparticles: Holon and spinon | 
	| 1948 | Quantum electrodynamics | 
	| Tonks, Lewi | 1928 - 1929 | Plasma oscillation | 
	| Torricelli, Evangelista | 1643 | Atmospheric pressure | 
	| Toussaint, Jean Joseph Henri | 1880 - 1881 | Anthrax vaccine | 
	| Towneley, Richard | 1662 | Boyle’s law | 
	| Townes, Charles Hard | 1917 - 1960 | Stimulated emission | 
	| Townsend, John Sealy | 1897 | Townsend discharge | 
	| 1935 | Geiger counter | 
	| Travers, Morris | 1898 | Krypton
	(atomic number 36) | 
	| 1898 | Neon
	(atomic number 10) | 
	| 1898 | Xenon
	(atomic number 54) | 
	| Trillat, Auguste | 1893 | Galalith | 
	| Trithemius, Johannes | 1499 | Steganography | 
	| Troost, Louis Joseph | 1801 | Niobium
	(atomic number 41) | 
	| Tsai, Yung-su | 1971 - 1977 | Tau | 
	| Tsui, Daniel | 1930 - 2014 | Quasiparticles: Fractional quantum Hall effect | 
	| Tsyganov, Yu. S. | 2000 | Livermorium
	(atomic number 116) | 
	| 2004 | Moscovium
	(atomic number 115) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
	(atomic number 117) | 
	| Turing, Alan | 1946 | Computer | 
	| 1950 | Turing test | 
	| 1952 | Turing pattern | 
	| Twining, Alexander | 1805 - 1876 | Vapor-compression refrigeration | 
	| Twort, Frederick | 1915, 1917 | Bacteriophage | 
	| Tyndall, John | 1863 | Greenhouse effect | 
	| Ulam, Stanislaw | 1948 | Cellular automaton | 
	| de Ulloa, Antonio | 1750 | Platinum
	(atomic number 78) | 
	| Urbain, Georges | 1878, 1907 | Ytterbium
	(atomic number 70) | 
	| 1907 | Lutetium
	(atomic number 71) | 
	| Urey, Harold | 1931 | Deuterium | 
	| 1953 | Abiogenesis | 
	| Urquhart, Thomas | 1647 - 1678 | Philosophical language: Logopandecteision | 
	| Utyonkov, V. K. | 2000 | Livermorium
	(atomic number 116) | 
	| 2006 | Oganesson
	(atomic number 118) | 
	| 2009 | Tennessine
(atomic number 117) | 
	| Vail, Alfred | 1833 | Electrical telegraph | 
	| Valasek, Joseph | 1920 | Ferroelectricity | 
	| Van Allen, James | 1908 - 1958 | Van Allen belts | 
	| Vandermonde, Alexandre-Théophile | 1771, 1885 | Knot theory | 
	| Vavilov, Nikolai Ivanovich | 1923 | Crop diversity | 
	| Vavilov, Sergey Ivanovich | 1934 | Cherenkov radiation | 
	| Vernier, Pierre | 1631 | Vernier scale | 
	| Le Verrier, Urbain Jean Joseph | 1846 | Discovery of Neptune | 
	| Vesalius, Andreas | 1543 | Human anatomy | 
	| Villard, Paul Ulrich | 1900 | Gamma ray | 
	| da Vinci, Leonardo | 1450, 1481 | Hygrometer | 
	| 1485 | Parachute | 
	| 1699 | Tribology | 
	| de Villeneuve, Joachim Faiguet | 1839 - 1887 | International auxiliary language: Langue nouvelle | 
	| Virchow, Rudolf | 1839 | Cell theory | 
	| 1858 | Communities of cells | 
	| Volta, Alessandro | 1799 | Electric battery | 
	| Voigt, Woldemar | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| Voinov, A. A. | 2009 | Tennessine
	(atomic number 117) | 
	| Vostokin, G. K. | 2009 | Tennessine
	(atomic number 117) | 
	| De Vries, Hugo | 1909 | Mutationism | 
	| van der Waals, Johannes Diederik | 1873 | Changes of state | 
	| Walcott, Charles Doolittle | 1909 | Burgess shale | 
	| Wald, George | 1956 | Visual phototransduction | 
	| von Waldeyer-Hartz, Wilhelm | 1878 | Mitosis | 
	| Wallace, Alfred Russel | 1859 | Wallace line | 
	| 1890 | Aposematism | 
	| Wallis, John | 1656 | Infinite and infinitesimal | 
	| Walton, John R. | 1958 | Nobelium
	(atomic number 102) | 
	| Watson, James | 1953 | DNA structure | 
	| Watt, James | 1765 | Steam engine | 
	| Weber, Wilhelm Eduard | 1833 | Electrical telegraph | 
	| Wedgwood, Josiah | 1783 | Wedgwood scale | 
	| Wegener, Alfred Lothar | 1912 | Continental drift | 
	| Wenham, Francis Herbert | 1871 | Wind tunnel | 
	| Weiss, Pierre | 1907 | Magnetic domain | 
	| 1911 | Weiss magneton | 
	| Weiss, Rainer | 1967 | LIGO | 
	| von Weizsäcker, Carl Friedrich | 1920 | Stellar evolution | 
	| Weller, Thomas Huckle | 1955 | Polio vaccine | 
	| Wells, Horace | 1842 - 1846 | Anesthesia | 
	| Wheatstone, Charles | 118 BCE - 1953 | Cipher: Playfair cipher | 
	| 1833, 1843 | Wheatstone bridge | 
	| 1838 | Electrical telegraph | 
	| Whewell, William | 1833 | “Scientist” | 
	| Whipple, George | 1913 - 1930 | Vitamin discoveries: B12 | 
	| Whitehurst, John | 1772, 1796 | Hydraulic ram | 
	| Wilcke, Johan Carl | 1757 | Triboelectric series | 
	| Wilczek, Frank | 2017 | Time crystal | 
	| Wilk, P. A. | 2009 | Tennessine
	(atomic number 117) | 
	| Wilkins, John | 1647 - 1678 | Philosophical language: Real Character | 
	| 1668 | Metric system | 
	| Winkler, Clemens | 1886 | Germanium
	(atomic number 32) | 
	| Wilson, E. O. | 1975 | Sociobiology | 
	| Windaus, Adolf | 1913 - 1930 | Vitamin discoveries: D | 
	| Winkel, Dietrich Nikolaus | 1814 - 1815 | Metronome | 
	| Woese, Carl | 1999 | Three-domain system | 
	| Wollaston, William Hyde | 1804 | Platinum group metals | 
	| Wöhler, Friedrich | 1828 | Synthesis of urea | 
	| Wright, Orville | 1903 | Airplane | 
	| Wright, Sewall | 1918 | Neo-Darwinism | 
	| 1922 | Coefficient of relationship | 
	| Wright, Wilbur | 1903 | Airplane | 
	| Yamaguchi, Takayuki | 2012 | Nihonium
	(atomic number 113) | 
	| Yang, Chen-Ning | 1956 | Parity violation | 
	| Yao, Norman | 2017 | Time crystal | 
	| Yeremin, A. V. | 2004 | Moscovium
	(atomic number 115) | 
	| Yi Xing | 2400 BCE - 1820 CE | Computing devices | 
	| Yoneda, Akira | 2012 | Nihonium
	(atomic number 113) | 
	| Yoshida, Atsushi | 2012 | Nihonium
	(atomic number 113) | 
	| Young, Thomas | 1800 | Wave nature of light | 
	| Yukawa, Hideki | 1934, 1947 | Meson | 
	| Zamenhof, L. L. | 1839 - 1887 | International auxiliary language: Esperanto | 
	| Zeeman, Pieter | 1845 - 1913 | Magneto-optic and electro-optic effects | 
	| Zeldovich, Yakov | 1962 - 1964 | Quasar | 
	| Zhabotinsky, Anatoly | 1951 | Chemical oscillations | 
	| Zimmermann, Phil | 1976 - 1991 | Public-key cryptography | 
	| Zvara, I. | 1961 - 1971 | Lawrencium
	(atomic number 103) | 
	| Zweig, George | 1964 | Quark | 
	| Zwicky, Fritz | 1933 | Neutron star |